Search for narrow high-mass resonances in proton–proton collisions at s=8 TeV decaying to a Z and a Higgs boson

Physics Letters B

关键词: CMS;    Physics;    Resonance production;    Jets;    Tau leptons;    Boosted topology;   

DOI  :  10.1016/j.physletb.2015.07.011

来源: DOAJ

【 摘 要 】

A search for a narrow, high-mass resonance decaying into Z and Higgs (H) bosons is presented. The final state studied consists of a merged jet pair and a τ pair resulting from the decays of Z and H bosons, respectively. The analysis is based on a data sample of proton–proton collisions at a center-of-mass energy of 8 TeV, collected with the CMS experiment in 2012, and corresponding to an integrated luminosity of 19.7 fb−1. In the resonance mass range of interest, which extends from 0.8 to 2.5 TeV, the Z and H bosons are produced with large momenta, which implies that the final products of the two quarks or the two τ leptons must be detected within a small angular interval. From a combination of all possible decay modes of the τ leptons, production cross sections in a range between 0.9 and 27.8 fb are excluded at 95% confidence level, depending on the resonance mass.

【 授权许可】

Unknown